A wall construction polisher for building

Abstract

The utility model relates to the technical field of polisher, and disclose a wall construction polisher for building, through setting up controller, handle bar, hydraulic damper etc. Structure realizes damping shock attenuation, since motor drives the grinding disc to polish continuously, will produce continuous vibration when rotating, and vibration is conducted through the structure connected with it, and is conducted to the handle bar held by the worker through gear transmission box, support cylinder, controller, and the controller will cause piston rod to drive working piston to slide in the body inside when vibrating, since the oil pressure and air pressure in the body inside produce the buffer, make the vibration of conduction be weakened by hydraulic damper, and the vibration frequency of conduction to handle bar is attenuated, makes the worker feel tired when carrying on the continuous operation to reduce, has played the effect of damping shock attenuation.

Description

Technical Field

[0001] This utility model relates to the field of grinding machine technology, and in particular to a wall grinding machine for building construction. Background Technology

[0002] Wall sanders are pieces of equipment used in the decoration industry. Also known as "wall polishing machines," "wall sanders," or simply "wall grinding machines," they use a motor to drive a high-speed rotating sanding disc or wheel to sand and polish walls. Their working principle is similar to traditional hand sanding, but they are more efficient and produce better results. Wall sanders can effectively remove wall imperfections, leaving walls smooth and mirror-like.

[0003] In existing technology, when a sander is actually working, the worker needs to hold a handle or lever to control the sanding. Since the vibration of the motor is directly transmitted to the handle, long-term operation can cause arm fatigue. During the sanding of walls, the sander is equipped with a single-sided dust suction port, which cannot completely cover the area around the sanding disc, resulting in a high dust escape rate, especially when sanding the top wall surface. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a wall surface grinding machine for construction, which has the advantages of damping and shock absorption, circulating dust accumulation, and filter cleaning, thus solving the problems mentioned in the background technology.

[0005] This utility model provides the following technical solution: a wall surface grinding machine for construction, including a dust collection hood, a dust trough inside the dust collection hood, a gear transmission box fixedly installed on the top of the dust collection hood, a motor fixedly connected to one side of the gear transmission box, the motor and the gear transmission box being connected via an output shaft, a grinding disc fixedly connected to the output shaft of the gear transmission box inside the dust collection hood, a suction cylinder fixedly installed on the top of the dust collection hood on the other side of the gear transmission box, an air hole between the dust trough and the suction cylinder, support cylinders rotatably installed on both sides of the gear transmission box, a flexible hose A fixedly connected between the suction cylinder and the support cylinder, a support frame symmetrically fixedly installed in the middle of the support cylinder, the support frame rotatably installed on both sides of the gear transmission box, a transmission pipe fixedly connected to the end of the support cylinder away from the flexible hose A, a controller fixedly connected to the end of the transmission pipe, a handle slidably connected to the end of the controller, a circular groove B inside the handle, a hydraulic damper installed at the connection between the controller and the handle, the top of the hydraulic damper fixed inside the circular groove B.

[0006] With the above structural design, in practical applications, this device achieves a cleaning effect by coordinating the lever and the filter screen, allowing dust to be shaken off when the filter screen is moved. By setting a hydraulic damper between the controller and the handle, vibration transmitted from the motor is reduced during operation.

[0007] Preferably, the inner wall of the dust collection hood and the dust trough are provided with tangential air grooves in a circular shape. A filter screen is fixedly installed inside the tangential air groove. The filter screen is made of a flexible material. The output shaft of the gear transmission box is located inside the dust trough and is fixedly installed with a lever in a circular shape. The lever is provided with a paddle on one side of the tangential air groove. One side of the paddle is in contact with the side of the filter screen.

[0008] With the above-mentioned structural design, and by setting multiple tangential air grooves and filters, the dust generated by this device during operation can be adsorbed by the vortex.

[0009] Preferably, a flexible hose B is provided at the bottom of one side of the controller. The flexible hose B is connected to the inside of the tangential air groove through a transmission pipe and a flexible hose A. A circular groove A is provided inside the controller, and the bottom of the hydraulic damper is fixedly installed on the bottom wall of the circular groove A.

[0010] With the above-described structure, the dust collection device connects to hose B, and then uses the transmission pipe, support cylinder, and hose A to collect the dust filtered by the filter screen inside the dust tank.

[0011] Preferably, the hydraulic damper includes a body, which is fixed in the middle of the bottom wall of the circular groove A. A top plug is fixedly sleeved at the opening of the body. A floating piston is slidably installed inside the body. Air is filled between the floating piston and the bottom wall of the body. A piston rod is fixedly installed on the top wall of the circular groove B. A working piston is fixedly installed inside the body through the top plug at the end of the piston rod. Both the working piston and the floating piston are adapted to the shape of the inner wall of the body.

[0012] Preferably, the floating piston and the top plug are divided into upper and lower oil chambers by the working piston, the body is filled with hydraulic oil between the top plug and the floating piston, the hydraulic damper is fixedly installed with an outer sleeve on the outer ring of the piston rod, and the outer sleeve is slidably installed between the inner wall of the circular groove A and the outer wall of the body.

[0013] The above structural design, with the hydraulic damper, reduces worker fatigue during continuous operation, weakens the vibration transmitted by the motor through the support cylinder, and attenuates the low-to-medium frequency vibrations from the dust collection cylinder.

[0014] This utility model has the following advantages: 1. This wall surface grinding machine for construction uses a structure with tangential air grooves, filters, and levers to clean the filters. The tangential air grooves generate suction, which draws away dust in a vortex. However, if a large amount of dust is filtered at the same time, it may cause the filters to become clogged. At this point, the rotation of the lever will cycle through different filters. After the filters are repeatedly touched, they will vibrate, dispersing the dust clogging the filter surface and preventing the filters from becoming clogged, thus achieving the effect of cleaning the filters.

[0015] 2. This wall grinding machine for construction uses a controller, handle, and hydraulic damper to achieve damping and vibration reduction. As the motor continuously drives the grinding disc to grind, it generates continuous vibration during rotation. This vibration is transmitted through the connected structure, passing through the gear transmission box, support cylinder, and controller to the handle held by the worker. When the controller vibrates, it causes the piston rod to drive the working piston to slide inside the body. Due to the buffering effect of oil and air pressure inside the body, the transmitted vibration is weakened by the hydraulic damper, and the vibration frequency transmitted to the handle is attenuated, reducing worker fatigue during continuous operation and achieving the effect of damping and vibration reduction. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the dust collection tank of this utility model; Figure 3 This is a schematic diagram of the internal structure of the dust collection tank of this utility model from another perspective; Figure 4 This is a schematic diagram of the internal structure of the controller of this utility model; Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0017] In the diagram: 1. Dust collection hood; 11. Dust trough; 12. Air vent; 13. Tangential air trough; 14. Filter screen; 2. Gear transmission box; 21. Grinding disc; 22. Lever; 3. Motor; 4. Dust collection cylinder; 41. Hose A; 5. Support cylinder; 51. Support frame; 52. Transmission pipe; 6. Controller; 61. Hose B; 62. Circular groove A; 7. Handle lever; 71. Circular groove B; 8. Hydraulic damper; 81. Body; 82. Top plug; 83. Floating piston; 84. Piston rod; 85. Working piston; 86. Outer sleeve. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-5 A wall surface grinding machine for construction includes a dust collection hood 1, with a dust trough 11 inside the dust collection hood 1. A gear transmission box 2 is fixedly installed on the top of the dust collection hood 1. A motor 3 is fixedly connected to one side of the gear transmission box 2. The motor 3 and the gear transmission box 2 are connected via an output shaft. A grinding disc 21 is fixedly connected to the output shaft of the gear transmission box 2 inside the dust collection hood 1. A dust suction cylinder 4 is fixedly installed on the top of the dust collection hood 1 on the other side of the gear transmission box 2. An air vent 12 is provided between the dust trough 11 and the dust suction cylinder 4. The gear transmission box 2 is rotatably mounted on both sides. There is a support cylinder 5, and a hose A41 is fixedly connected between the vacuum cleaner cylinder 4 and the support cylinder 5. A support frame 51 is symmetrically fixedly installed in the middle of the support cylinder 5. The support frame 51 is rotatably installed on both sides of the gear transmission box 2. A transmission pipe 52 is fixedly connected to the end of the support cylinder 5 away from the hose A41. A controller 6 is fixedly connected to the end of the transmission pipe 52. A handle 7 is slidably connected to the end of the controller 6. A circular groove B71 is opened inside the handle 7. A hydraulic damper 8 is installed at the connection between the controller 6 and the handle 7. The top of the hydraulic damper 8 is fixed inside the circular groove B71.

[0020] In practical applications, this device, through the coordination between the lever 22 and the filter screen 14, addresses the issue that when the filter screen 14 is filtering dust, the filter holes may become clogged by dust, resulting in reduced dust suction. The cyclic rotation of the lever 22, via a paddle, shakes the filter screen 14, causing the dust to be shaken off, thus achieving a cleaning effect. Furthermore, the hydraulic damper 8 between the controller 6 and the handle 7 reduces vibration transmitted from the motor 3 during operation, extending the worker's working time and reducing fatigue during continuous work.

[0021] Please see Figures 1-3 The inner wall of the dust collection hood 1 and the dust trough 11 are provided with tangential air grooves 13 in a circular shape. A filter screen 14 is fixedly installed inside the tangential air groove 13. The filter screen 14 is made of flexible material. The output shaft of the gear transmission box 2 is located inside the dust trough 11 and is fixedly installed with a lever 22 in a circular shape. The lever 22 is provided with a lever piece on one side of the tangential air groove 13. One side of the lever piece is in contact with the side of the filter screen 14.

[0022] By setting multiple tangential air grooves 13 and filters 14, the dust generated during operation can be adsorbed by eddies. Through the suction of different tangential air grooves 13, the dust is located between the grinding disc 21 and the dust collection hood 1 and generates eddies with the wind, reducing the dust escape rate during grinding and enhancing dust capture.

[0023] When grinding is being performed, the gear transmission box 2 drives the grinding disc 21 and the lever 22 to rotate synchronously via the output shaft. The grinding disc 21 grinds the wall surface, causing dust to fall around the grinding disc 21. At this time, the dust collection device is activated, and the suction force generated by the tangential air groove 13 is used to draw away the dust in a vortex. However, the simultaneous filtration of a large amount of dust may cause the filter screen 14 to become clogged. At this time, due to the rotation of the lever 22, different filters 14 will be rotated in a cycle, causing the filter screen 14 to shake, thereby dispersing the dust that is clogging the filter screen 14 and maintaining the filtration effect of the filter screen.

[0024] Please see Figures 1-4 The bottom of one side of the controller 6 is provided with a flexible hose B61. The flexible hose B61 is connected to the inside of the tangential air groove 13 through the transmission pipe 52 and the flexible hose A41. The inside of the controller 6 is provided with a circular groove A62. The bottom of the hydraulic damper 8 is fixedly installed on the bottom wall of the circular groove A62.

[0025] The dust collection device is connected to the hose B61, and then uses the transmission pipe 52, support cylinder 5, and hose A41 to adsorb the dust inside the dust tank 11 that has been filtered by the filter screen 14, so that the dust is adsorbed and the dust is prevented from leaking out.

[0026] Please see Figures 1-5 The hydraulic damper 8 includes a body 81, which is fixed in the middle of the bottom wall of the circular groove A62. A top plug 82 is fixedly sleeved at the opening of the body 81. A floating piston 83 is slidably installed inside the body 81. Air is filled between the floating piston 83 and the bottom wall of the body 81. A piston rod 84 is fixedly installed on the top wall of the circular groove B71. The end of the piston rod 84 passes through the top plug 82 and a working piston 85 is fixedly installed inside the body 81. Both the working piston 85 and the floating piston 83 are adapted to the shape of the inner wall of the body 81.

[0027] Please see Figures 1-5 The floating piston 83 and the top plug 82 are divided into upper and lower oil chambers by the working piston 85. The body 81 is filled with hydraulic oil between the top plug 82 and the floating piston 83. The hydraulic damper 8 is fixedly installed on the outer ring of the piston rod 84 with an outer sleeve 86. The outer sleeve 86 is slidably installed between the inner wall of the circular groove A62 and the outer wall of the body 81.

[0028] By setting up a hydraulic damper 8, the fatigue of workers during continuous operation can be reduced. When the hydraulic damper 8 is in actual operation, the working piston 85 is driven by the piston rod 84 to slide back and forth inside the body 81, which weakens the vibration transmitted by the motor 3 through the support cylinder 5, attenuates the low and medium frequency vibration from the dust collection cylinder 4, and avoids arm fatigue caused by long-term operation due to vibration.

[0029] Working principle: When in use, connect the hose B61 to the vacuum cleaner, then start the motor 3. The motor 3 drives the grinding disc 21 and the lever 22 to rotate through the gear transmission box 2. The grinding disc 21 is pressed against the wall, and the rotation of the grinding disc 21 rubs against the wall. The dust generated by the friction is attracted by the vacuum cleaner and forms a vortex between the grinding disc 21 and the inner wall of the dust collection hood 1, preventing dust leakage. The dust is then attracted by the tangential air groove 13 and filtered by the filter screen 14. The filtered dust is then transported through the hose A41 and sucked away by the vacuum cleaner. When the grinding disc 21 rotates, the lever 22 rotates at the same time. The rotation of the lever 22 causes the filter screen 14 to rotate cyclically through the paddle. After being touched cyclically, the filter screen 14 vibrates, which disperses the dust clogging the surface of the filter screen 14 and prevents the filter screen 14 from becoming clogged. As the motor 3 continuously drives the grinding disc 21 to grind, it generates continuous vibration when rotating. The vibration is transmitted through the structure connected to it, and then through the gear transmission box 2, support cylinder 5, and controller 6 to the handle 7 held by the worker. When the controller 6 vibrates, it causes the piston rod 84 to drive the working piston 85 to slide inside the body 81. Due to the buffering effect of the oil pressure and air pressure inside the body 81, the transmitted vibration is weakened by the hydraulic damper 8, and the vibration frequency transmitted to the handle 7 is attenuated, which reduces the fatigue of the worker when performing continuous work.

Claims

1. A wall surface grinding machine for construction, comprising a dust collection hood (1), characterized in that: The dust collection hood (1) has a dust trough (11) inside. A gear transmission box (2) is fixedly installed on the top of the dust collection hood (1). A motor (3) is fixedly connected to one side of the gear transmission box (2). The motor (3) and the gear transmission box (2) are connected by an output shaft. A grinding disc (21) is fixedly connected to the output shaft of the gear transmission box (2) inside the dust collection hood (1). A dust suction cylinder (4) is fixedly installed on the top of the dust collection hood (1) on the other side of the gear transmission box (2). A vent (12) is opened between the dust trough (11) and the dust suction cylinder (4). Support cylinders (5) are rotatably installed on both sides of the gear transmission box (2). The dust suction cylinder (4) A hose A (41) is fixedly connected to the support cylinder (5). A support frame (51) is symmetrically fixedly installed in the middle of the support cylinder (5). The support frame (51) is rotatably installed on both sides of the gear transmission box (2). A transmission pipe (52) is fixedly connected to the end of the support cylinder (5) away from the hose A (41). A controller (6) is fixedly connected to the end of the transmission pipe (52). A handle (7) is slidably connected to the end of the controller (6). A circular groove B (71) is opened inside the handle (7). A hydraulic damper (8) is installed at the connection between the controller (6) and the handle (7). The top of the hydraulic damper (8) is fixed inside the circular groove B (71).

2. The wall surface grinding machine for construction according to claim 1, characterized in that: The inner wall of the dust collection hood (1) and the dust trough (11) are provided with tangential air grooves (13) in a circular shape. A filter screen (14) is fixedly installed inside the tangential air groove (13). The filter screen (14) is made of flexible material. The output shaft of the gear transmission box (2) is located inside the dust trough (11) and a lever (22) is fixedly installed in a circular shape. The lever (22) is provided with a paddle on one side of the tangential air groove (13). One side of the paddle is in contact with the side of the filter screen (14).

3. A wall surface grinding machine for construction according to claim 2, characterized in that: The bottom of one side of the controller (6) is provided with a flexible hose B (61). The flexible hose B (61) is connected to the inside of the tangential air groove (13) through the transmission pipe (52) and the flexible hose A (41). The inside of the controller (6) is provided with a circular groove A (62). The bottom of the hydraulic damper (8) is fixedly installed on the bottom wall of the circular groove A (62).

4. A wall surface grinding machine for construction according to claim 3, characterized in that: The hydraulic damper (8) includes a body (81), which is fixed in the middle of the bottom wall of the circular groove A (62). A top plug (82) is fixedly sleeved at the opening of the body (81). A floating piston (83) is slidably installed inside the body (81). Air is filled between the floating piston (83) and the bottom wall of the body (81). A piston rod (84) is fixedly installed on the top wall of the circular groove B (71). The end of the piston rod (84) passes through the top plug (82) and a working piston (85) is fixedly installed inside the body (81). The working piston (85) and the floating piston (83) are both adapted to the shape of the inner wall of the body (81).

5. A wall surface grinding machine for construction according to claim 4, characterized in that: The floating piston (83) and the top plug (82) are divided into upper and lower oil chambers by the working piston (85). The body (81) is filled with hydraulic oil between the top plug (82) and the floating piston (83). The hydraulic damper (8) is fixedly installed with an outer sleeve (86) on the outer ring of the piston rod (84). The outer sleeve (86) is slidably installed between the inner wall of the circular groove A (62) and the outer wall of the body (81).

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